World Cup security drill

Members of the National Security Force, composed of police and firemen, practice crowd control during training of troops who will provide security at the 2014 World Cup, in Brasilia February 4, 2014. The World Cup will be held in 12 cities in Brazil from June 12 through July 13.

Members of the National Security Force, composed of police and firemen, practice crowd control during training of troops who will provide security at the 2014 World Cup, in Brasilia February 4, 2014. The World Cup will be held in 12 cities in Brazil from June 12 through July 13. (REUTERS/Ueslei Marcelino)

Members of the National Security Force, composed of police and firemen, practice crowd control during training of troops who will provide security at the 2014 World Cup, in Brasilia February 4, 2014. The World Cup will be held in 12 cities in Brazil from June 12 through July 13.REUTERS/Ueslei Marcelino